Finding the Third Proportional to 543,420 and 1,191,816

Step by Step Solution

1. Step 1: Write the proportion equation
   543,420 : 1,191,816 = 1,191,816 : x
2. Step 2: Convert to fraction form
   543,420/1,191,816 = 1,191,816/x
3. Step 3: Cross multiply
   543,420x = 1,191,816 × 1,191,816
4. Step 4: Simplify right side
   543,420x = 1,420,425,377,856
5. Step 5: Solve for x
   x = 1,420,425,377,856/543,420
6. Step 6: Final answer
   x = 2,613,862.90